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Calculation method of deformation of coaxial cab stabilizer bar system

A stabilizer bar system and calculation method technology, applied in the direction of calculation, design optimization/simulation, special data processing applications, etc., can solve the problem that cannot provide analytical calculation formulas, cannot meet the coaxial cab stabilizer bar system, and is difficult to obtain accurate and reliable Deformation displacement calculation value and other issues, to achieve the effect of reliable deformation displacement calculation method

Inactive Publication Date: 2018-02-09
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although many experts have studied the deformation of the coaxial stabilizer bar system, due to the constraints of key issues such as rubber bushing deformation analysis and stiffness coupling, generally only the influence of the rubber bushing on the stiffness of the stabilizer bar system can be used A conversion factor to approximate the deformation and displacement of the coaxial cab stabilizer bar system. Therefore, it is difficult to obtain an accurate and reliable calculation of the deformation and displacement
[0003] At present, the verification of the roll angle stiffness of the coaxial cab stabilizer bar system at home and abroad mostly uses ANSYS simulation software to simulate and verify the deformation, displacement and stiffness of the cab stabilizer bar system through solid modeling. , although this method can obtain relatively reliable simulation values, however, because it cannot provide accurate analytical calculation formulas, it cannot meet the requirements of CAD software development for the coaxial cab stabilizer bar system, and can only be used for the designed coaxial cab stabilizer bar system. Cab stabilizer bar system for simulation verification

Method used

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  • Calculation method of deformation of coaxial cab stabilizer bar system
  • Calculation method of deformation of coaxial cab stabilizer bar system
  • Calculation method of deformation of coaxial cab stabilizer bar system

Examples

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Embodiment 1

[0043] Embodiment 1: The structure of a coaxial cab stabilizer bar system is left-right symmetrical, such as figure 2 As shown, it includes: swing arm 1, suspension rubber bushing 2, torsion rubber bushing 3, torsion tube 4; wherein, torsion tube 4 and torsion rubber bushing 3 are coaxial; the distance between the left and right swing arms 1 L c =1550mm, that is, the suspension distance of the stabilizer bar; the distance l between the suspension rubber bushing 2 and the torsion rubber bushing 3 1 =380mm, that is, the length of the swing arm; the distance from the suspension position C of the swing arm to the outermost end A is Δl 1 =47.5mm; the length L of the twisted tube 4 w =1500mm, inner diameter d=35mm, outer diameter D=50mm, elastic modulus E=200GPa, Poisson’s ratio μ=0.3; the structure and material properties of the left and right four rubber bushes are exactly the same, as image 3 As shown, it includes: an inner circle sleeve 5, a rubber sleeve 6, and an outer ci...

Embodiment 2

[0075] Embodiment 2: The structure of a coaxial cab stabilizer bar system is left-right symmetrical, such as figure 2 As shown, among them, the distance L between the left and right swing arms c =1400mm, that is, the suspension distance of the stabilizer bar; the distance l between the suspension rubber bushing 2 and the torsion rubber bushing 3 1 =350mm, that is, the length of the swing arm; the distance Δl from the suspension position C of the swing arm to the outermost end A 1 =52.5mm; the length L of the torsion tube 4 w =1000mm, inner diameter d=42mm, outer diameter D=50mm. The structure and material properties of the left and right four rubber bushes are exactly the same, such as image 3 Shown, wherein, the inner circle diameter d of the inner circle sleeve 5 x =35mm, wall thickness δ=5mm; length L of rubber sleeve x =40mm, inner circle radius r a =22.5mm, outer circle radius r b =37.5mm; the material properties of the stabilizer bar and the material properties ...

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Abstract

The invention discloses a calculation method of deformation of a coaxial cab stabilizer bar system. The method includes: (1) calculation of a deformation coefficient Gw of a cab stabilizer bar at a suspension position; (2) analysis and calculation of radial rigidity Kx of a rubber bushing of the cab stabilizer bar; (3) calculation of equivalent line rigidity Kws of the coaxial cab stabilizer bar system; (4) calculation of deformation displacement amounts of the coaxial cab stabilizer bar system and a swing arm; and (5) ANSYS simulation verification of deformation of the coaxial cab stabilizerbar system. According to the method, analysis and calculation can be carried out on the vertical-direction deformation displacement amount of the stabilizer bar system, which is in a given-load case,at the cab suspension position according to structure and material characteristic parameters of a torsion tube of the coaxial cab stabilizer bar system and structure and material characteristic parameters of the rubber bushing. Through practical calculation and ANSYS simulation verification, it is knowable that the precise deformation displacement calculation values of the coaxial cab stabilizer bar system can be obtained by utilizing the method, and a technical foundation is laid for design CAD software development of the cab stabilizer bar system.

Description

technical field [0001] The invention relates to a vehicle cab suspension, especially a calculation method for deformation of a coaxial cab stabilizer bar system. Background technique [0002] The full-floating cab suspension must be equipped with a stabilizer bar system. Among them, the stabilizer bar system mainly includes swing arms, rubber bushes and torsion tubes. At present, no reliable analysis has been given for the design of the coaxial cab stabilizer bar system. design method. Although many experts have studied the deformation of the coaxial stabilizer bar system, due to the constraints of key issues such as rubber bushing deformation analysis and stiffness coupling, generally only the influence of the rubber bushing on the stiffness of the stabilizer bar system can be used A conversion factor is used to approximate the deformation and displacement of the coaxial cab stabilizer bar system. Therefore, it is difficult to obtain an accurate and reliable calculation of...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/23
Inventor 李栋李胜曹旭光胡金蕊黄德惠张凯向建东
Owner CHINA FIRST AUTOMOBILE
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